Hello,

According to previous year data and change in patterns the given below list is an assumption of percentile vs marks

99.5 percentile - 230 marks

99 percentile - 195 marks

98.5 percentile - 180 marks

98 percentile - 170 marks

97 percentile - 150 marks

96 percentile - 125 marks

95 percentile - 115 marks

90 percentile - 100 marks

As you can see 72 percentile is below 100 marks.In order to get cse you should have a safe bar of 98.8-99+. A mark above 190 can fetch you cse in some decent NITs or IIITs.As you all have choices one can select the stronger chapters among the questions.

As the competetion is high work smartly and solve all the previous papers and attempt mock test.

Go through this link

https://engineering.careers360.com/articles/how-prepare-for-jee-main

Hope it helped

Good luck!!